University of Twente Student Theses


Demantic enrichment of indoor mobile laser scanner point clouds and trajectories

Elseicy, Ahmed Mossad Ibrahim (2018) Demantic enrichment of indoor mobile laser scanner point clouds and trajectories.

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Abstract:State-of-the-art indoor mobile laser scanners allow the user to map challenging environmentssuch as multi-story buildings and staircases while continuously walking through the environment.The trajectory of the laser scanner gives insights about indoor spaces and topological relations be-tween them. Thus, analyzing the point cloud and the trajectory can automate the process of label-ing them with information about the spaces such as floors, staircases, and rooms. In this research,the point cloud is analyzed with the help of the scanner trajectory to automate the labeling pro-cess. Analyzing the scanner trajectory as a standalone dataset is used to identify the staircases andto separate the floors. Also, it is used to infer the indoor spaces by analyzing the operator behaviorduring the scanning process. By processing the point cloud with the trajectory, the doors whichare traversed by the trajectory are identified, and the spaces are labeled by transferring the labelsfrom the annotated trajectory to the point cloud. The labels include floors, staircases, doorways,and rooms.
Item Type:Essay (Master)
Faculty:ITC: Faculty of Geo-information Science and Earth Observation
Programme:Geoinformation Science and Earth Observation MSc (75014)
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